Multiple clients attached to same usb

[SBKrogh]

Hi there,

I have tested this Python implementation on a Mac, and it works great.

I was of the understanding that only one client could attach to a port at a time.
This is not the case, as multiple clients can attach to the same port at the same time.

Is this expected or not?
In my case, it is not an issue, as it does not crash.